CN108136982B - Protective cover for a helical spring housing, helical spring housing arrangement and vehicle - Google Patents
Protective cover for a helical spring housing, helical spring housing arrangement and vehicle Download PDFInfo
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- CN108136982B CN108136982B CN201680061154.9A CN201680061154A CN108136982B CN 108136982 B CN108136982 B CN 108136982B CN 201680061154 A CN201680061154 A CN 201680061154A CN 108136982 B CN108136982 B CN 108136982B
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- protective cover
- spiral spring
- flat spiral
- spring housing
- housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/088—Endless track units; Parts thereof with means to exclude or remove foreign matter, e.g. sealing means, self-cleaning track links or sprockets, deflector plates or scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/027—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/104—Suspension devices for wheels, rollers, bogies or frames
- B62D55/108—Suspension devices for wheels, rollers, bogies or frames with mechanical springs, e.g. torsion bars
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0004—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing
- H05K5/0013—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing assembled by resilient members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Springs (AREA)
- Steering Controls (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a protective cover (4) for sealing a helical spring housing (2), a helical spring housing arrangement having a protective cover (4), and a vehicle having such a helical spring housing arrangement. The protective cover (4) has a first housing part (2A) and a second housing part (2B) forming a housing cover, wherein the first housing part (2A) forms together with the second housing part (2B) a receiving space for the helical spring (3) and the two housing parts (2A, 2B) are rotatable relative to one another. For this purpose, the helical spring housing (2) has a gap between the first housing part (2A) and the second housing part (2B). The protective cover (4) has an annular disk (9) extending in the radial direction and a wall section (10) adjoining the outer edge of the annular disk (9) and extending in the axial direction, wherein the protective cover (4) can be connected to the helical spring housing (2) in such a way that, in a functional state of connection with the helical spring housing (2) to form a helical spring housing device, the protective cover (4) covers the gap between the first housing part (2A) and the second housing part (2B) of the helical spring housing (2) from the outside.
Description
Technical Field
The invention relates to a protective cover for sealing a flat spiral spring housing having a first housing part and at least one second housing part forming a housing cover. The first housing part and the second housing part form a receiving space for the flat spiral spring, which housing parts are rotatable relative to one another. For this purpose, the flat spiral spring housing has a gap between the first housing part and the second housing part.
The invention further relates to a flat spiral spring housing arrangement having the flat spiral spring housing and a protective cover, and to a vehicle, in particular a two-rail vehicle, having a flat spiral spring housing arrangement having the flat spiral spring housing and the protective cover.
Background
Flat coil spring housings for receiving flat coil springs are well known in the art, flat coil springs being helically wound cables, in particular flat ribbon cables, having a plurality of electrical conductors electrically insulated from one another. Since the helical winding makes possible a resilient, flexible and thus compensating cable connection, the flat spiral spring is suitable, in particular, for transmitting signals, for example voltages or the like, between components that are movable relative to one another, such as the steering wheel and the steering column module.
Flat coil springs are used in motor vehicles in particular for transmitting signals between components integrated into a rotatably movable steering wheel (for example airbags or steering wheel heaters) and components arranged in a stationary manner in the vehicle (for example the associated airbag control units).
The flat coil spring is usually received in a steering wheel or control handle housing, for which purpose it is arranged directly in the steering wheel or control rod housing or in a separate flat coil spring housing which can be inserted into the steering wheel or control rod.
Various embodiments of flat spiral spring housings are known from the prior art, for example from US 5,314,344, US 6,962,497B 2 or DE 10125403 a 1.
The flat spiral spring housing usually has a first housing part and at least a second housing part which forms a housing cover, the two housing parts being rotatable relative to one another and forming a receiving space for the flat spiral spring. One of the housing parts here forms a so-called stator and can be fastened in a stationary manner in the vehicle relative to the vehicle body, for example relative to a steering column module or the like, while the other housing part forms a rotor and can be fastened fixedly on the steering wheel or the steering column for rotation therewith, so that it can follow the rotational movement of the steering wheel and can rotate relative to the stationary housing part.
In order to achieve a satisfactory rotatability of the two housing parts relative to each other, there is usually a gap, even if usually only a very small gap, between the first housing part and the second housing part. In order to avoid foreign bodies from entering the flat spiral spring housing, various possibilities are known, such as special flat spiral spring housing designs, the insertion of sealing means or the use of protective caps.
Disclosure of Invention
The object of the invention is to provide an alternative protective cover for sealing a flat spiral spring housing, which is particularly simple in construction, but which is very effective and by means of which foreign bodies can be reliably prevented from penetrating into the interior of the flat spiral spring housing. Furthermore, the object of the invention is to provide a corresponding flat spiral spring housing arrangement with a flat spiral spring housing and a protective cover, and to provide a corresponding flat spiral spring housing arrangement for a corresponding vehicle.
According to the invention, the object is achieved by a protective cover, by a flat spiral spring housing arrangement and by a vehicle having the features according to the respective independent patent claims. Advantageous embodiments of the invention are the subject of the dependent claims, the description and the figures and will be described in more detail below. The wording of the claims is made descriptive by explicit reference. In order to avoid repetitions, some of the features described below are only partially described once, that is to say only in conjunction with the protective cover, the flat spiral spring housing arrangement or the vehicle, but independently of one another are applicable to the protective cover and to the flat spiral spring housing arrangement and to the vehicle.
The protective cover according to the invention for a flat spiral spring housing is distinguished by the fact that: the protective cover has an annular disk which extends in the radial direction at least over part of the circumference, and a wall section which adjoins an outer edge of the annular disk and extends at least over part of the circumference in the axial direction, wherein the protective cover can be connected to the flat spiral spring housing in such a way that, in a functional state in which it is connected to the flat spiral spring housing to form a flat spiral spring housing arrangement, it covers the gap between the second housing part and the first housing part of the flat spiral spring housing from the outside.
Here, in the context of the present application, the position and direction indications "top", "bottom", "radial" and "axial" used relate in each case to the axis of rotation about which one of the two housing parts of the flat spiral spring housing can be rotated in the functionally mounted state of the vehicle, the position indication "top" denoting the side facing the steering wheel of the vehicle, the position indication "bottom" denoting the side facing the steering column module, the description "axial" denoting along an axis parallel to the axis of rotation or along the axis of rotation, and "radial" denoting accordingly in a plane perpendicular to the axis of rotation and intersecting the axis of rotation.
In the context of the present application, in the radial direction is therefore meant in a plane perpendicular to the axis of rotation of the steering column or steering wheel, in relation to the functional mounted state in the vehicle, so as to intersect the axis of rotation.
In the context of the present application, in the axial direction, respectively, means along an axis parallel to the axis of rotation of the steering column or wheel or so as to coincide with the axis of rotation of the steering wheel or column, with regard to the functional installation state of the protective cover according to the invention or the flat spiral spring housing arrangement in a vehicle according to the invention.
In the context of the present application, a gap is understood to mean any non-sealing arrangement of the two parts relative to each other, in particular relative to foreign matter.
The annular disk of the protective cover preferably extends over the entire circumference, that is to say over an angle of 360 °, and forms a completely closed annular disk. The axial wall section of the protective cover is likewise preferably of completely circumferential configuration and is therefore of cylindrical shell-shaped configuration.
The protective cover according to the invention, in particular a protective cover having a ring disk of full circumferential configuration and preferably having wall segments of the same full circumferential configuration, can provide in a simple manner a protective cover which seals the first housing part and the second housing part of the flat spiral spring housing against penetration of foreign bodies in a very effective manner.
The protective cover according to the invention is particularly suitable for flat spiral spring housings having a cup-shaped first housing part and at least a second housing part, the cup-shaped first housing part having a ring-disk-shaped bottom and a cylindrical shell-shaped wall section, and at least the second housing part forming a housing cover having at least one ring segment which extends in the radial direction and is arranged spaced apart in the axial direction from the ring-disk-shaped bottom of the first housing part and forms a receiving space for the flat spiral spring with the first housing part, for which purpose the ring-disk-shaped segment of the second housing part is preferably arranged spaced apart from the ring-disk-shaped bottom of the first housing part, particularly preferably parallel to the bottom of the first housing part.
Here, the cup-shaped first housing part of the flat spiral spring housing is preferably provided as a stator and is configured to be arranged in a stationary manner on the vehicle body and to be fastened, for example, in a steering column module or the like, whereas the second housing part is preferably provided to form a rotor and is configured in particular to be fastened to a steering column and/or a steering wheel.
The protective cover according to the invention is suitable for sealing flat spiral spring housings of different designs, in particular for three basic types of flat spiral spring housings which differ from one another firstly with regard to the design of the first and second housing parts and also with regard to the arrangement of the first and second housing parts relative to one another.
In the case of a flat spiral spring housing of a first type, as is known, for example, from DE 10125403 a1, the annular disc section of the second housing part extends almost as far as the cylindrical wall section of the first housing part, with the result that a flat spiral spring housing of this type has a gap between the outer edge of the annular section of the second housing part and the cylindrical wall section of the first housing part.
In the case of the flat spiral spring housing of the second type, the first housing part has, in the upper region of the cylindrical wall section, that is to say at the end of the cylindrical shell-shaped wall section remote from the base of the first housing part, a radially inwardly extending flange or annular portion which preferably extends in a parallel plane relative to the annular portion of the second housing part and in particular overlaps the latter in a labyrinth-like manner. In the case of flat spiral spring housings of this type, the gap is located here between two radially extending annular disk-shaped parts of the first housing part and the second housing part.
The first housing part can also be designed in multiple parts and can be assembled, for example, from a cup-shaped housing part and a likewise cup-shaped cover, which has a cylindrical shell-shaped axial wall section and an annular disk which adjoins the upper edge of the cylindrical shell-shaped wall section in the radial direction and forms an inwardly extending annular section, the cover being fixedly connected to the cup-shaped housing part and the cylindrical shell-shaped axial wall section of the cover bearing at least partially against the axial wall section of the cup-shaped housing part. In this case, the gap is here located between an inwardly extending annular section of the cover connected to the cup-shaped housing part and a section of the second housing part extending in the radial direction.
Furthermore, flat helical spring housings of a third type are also known, in which case the second housing part has an annular section, the outer end of which is adjoined by a cylindrical shell-shaped wall section which extends in the direction of the bottom of the first housing part, preferably outside the cup-shaped first housing part. In other words, in the case of the flat spiral spring housing of the third type, the second housing part is likewise of cup-shaped configuration and is arranged with the bottom at the top, that is to say with the bottom in the direction of the steering wheel, in relation to the functional installation state of the flat spiral spring housing in the vehicle. The cylindrical shell-shaped wall section or the wall section of the second housing part extending in the axial direction preferably extends parallel to the cylindrical shell-shaped wall section of the first housing part and is arranged in particular outside the latter. The gap between the first housing part and the second housing part is thus located in the region of the cylindrical shell-shaped wall section.
In order to seal the flat spiral spring housing of the first and/or second type, the protective cover according to the invention is constructed in such an advantageous development and can be connected to the flat spiral spring housing in such a way that the annular disk of the protective cover, which preferably extends radially beyond the gap width, covers the gap from the outside. The annular disk preferably bears here against the first housing part extending in the radial direction and against the second housing part, in particular on them.
In order to seal a flat spiral spring housing of the third type in the region of the cylindrical shell-shaped wall section of the first housing part or of the second housing part, the protective cap according to the invention is configured in such an advantageous development and can be connected to the flat spiral spring housing in such a way that, in its connected state to the flat spiral spring housing to form the flat spiral spring housing arrangement, the axial wall section of the protective cap covers the gap of the flat spiral spring housing from the outside, for which purpose the axial wall section of the protective cap preferably extends in the axial direction beyond the gap height.
In a particularly advantageous development of the protective cap according to the invention, the protective cap is constructed in such a way that, in its state of connection with the flat spiral spring housing to form the flat spiral spring housing arrangement, the axial wall section of the protective cap bears in the radial direction against the first housing part, at least over a part of the circumference, preferably in a completely circumferential manner, and as a result is fixed in the radial direction relative to the flat spiral spring housing. In this way, the radial fixing of the protective cap relative to the flat spiral spring housing, which preferably bears externally against the flat spiral spring housing in the region of the cylindrical shell-shaped wall section of the first housing part, can be achieved in a particularly simple and inexpensive manner.
In a further advantageous development of the protective cover according to the invention, the protective cover has a plurality of latching elements, in particular resiliently resilient latching hooks, distributed in a circumferentially distributed manner, preferably in a uniformly distributed manner, on its axial wall section for axial fixing relative to the flat spiral spring housing in order to establish a latching connection with the flat spiral spring housing, in particular with the first housing part of the flat spiral spring housing. The latching elements of the protective cover are preferably designed in such a way that they latch in each case a correspondingly designed projection on the flat spiral spring housing behind, in particular in each case a correspondingly designed projection on the cylindrical shell-shaped wall section of the first housing part of the flat spiral spring housing. The latching element of the protective cover is particularly preferably designed as a latching lug or latching hook which engages under a projection extending in the radial direction and arranged on the first housing part and can as a result be connected in a latching manner to the flat spiral spring housing.
In a further advantageous development of the protective cover according to the invention, the protective cover is formed by at least two ring segments, preferably by two half ring segments. That is to say that the protective cover is preferably formed by two half rings which extend in each case over a circumferential angle of 180 °. The division of the protective cover into at least two separate ring segments, in particular two half ring segments, makes it possible to arrange or assemble the protective cover radially from the outside around the flat spiral spring housing, with the result that no axial assembly or pushing of the protective cover onto the flat spiral spring housing is required. As a result, the protective cover can also be subsequently connected to the flat spiral spring housing, that is to say after the flat spiral spring housing has been installed in the vehicle, in particular without the steering wheel needing to be dismantled.
In a further advantageous development of the protective cover according to the invention, the two first adjacent ring section ends are connected to one another by a hinge, preferably by an integral hinge. In this case, in particular, only the axial wall sections of the ring segment ends are connected to one another by hinges, but not the ring end ends of the annular disks.
In a further advantageous development of the protective cover according to the invention, two further adjacent ring section ends can be connected to one another or to one another by means of a latching connection.
If the protective cover is formed by two ring segments, in particular by two half ring segments, the two half ring segments are preferably connected at the ends of the two first adjacent ring segments by a hinge, in particular by an integral hinge, and the other two second ring segment ends by a latching connection, or they can be connected to one another at the other two ring segment ends, preferably by a latching connection. A protective cover constructed in this way can be connected in a particularly simple manner to a flat spiral spring housing already installed in the vehicle, since the protective cover can be folded open accordingly and can be placed around the flat spiral spring from the outside and only the two second ring segment ends need to be connected by a latching connection in order to fix the protective cover radially around the flat spiral spring housing. Furthermore, only the latching elements on the axial wall sections of the protective cover, if present, will engage with corresponding projections on the flat spiral spring housing and latch accordingly for axial fixation.
In a further advantageous development of the protective cover according to the invention, the annular disk of the protective cover has a surface with a low roughness, in particular a surface with a low friction coefficient, on the side facing the rotor housing part and/or on the side facing the steering wheel in the functionally mounted state in the vehicle. As a result, friction occurring between the housing portion configured as the rotor and/or the steering wheel and/or other components and the protective cover may be reduced.
In a further advantageous development of the protective cover according to the invention, in the functionally mounted state of the protective cover in the vehicle, at least the side facing the housing part configured as a rotor and/or the side facing the annular disk of the protective cover of the steering wheel has an antistatic surface. However, the entire protective cover preferably has an antistatic surface; in particular, the entire protective cover is of an antistatic construction. As a result, charging of the protective cover can be reduced or avoided.
The flat spiral spring housing arrangement according to the invention has a flat spiral spring housing with a first housing part and at least a second housing part which forms a housing cover, the first housing part and the second housing part forming a receiving space for a flat spiral spring, the two housing parts being rotatable relative to one another, and the flat spiral spring housing having a gap between the first housing part and the second housing part, which gap is covered from the outside by the protective cover, and the above-mentioned protective cover according to the invention. The protective cover preferably seals the gap, in particular against the entry of foreign bodies.
In a further advantageous development of the flat spiral spring housing arrangement according to the invention, the flat spiral spring housing has a cup-shaped first housing part with a ring-shaped base and a cylindrical housing-shaped wall section, and has at least one second housing part which forms a housing cover with at least one ring-shaped section, the ring section of the cover second housing part extends in the radial direction and is arranged spaced apart in the axial direction from the ring-shaped base of the first housing part and forms a receiving space for the flat spiral spring with the first housing part, and a gap is located between the first housing part and the second housing part.
In a preferred advantageous development of the flat spiral spring housing arrangement according to the invention, the annular disk of the protective cover covers the gap in the flat spiral spring housing from the outside, for which purpose the annular disk of the protective cover preferably extends in the radial direction over the gap width and is in particular of completely circumferential design.
In this case, the annular disk is particularly preferably supported against or on the annular disk section of the second housing part. If the first housing part is of multi-part construction and has corresponding flange or ring disk segments which extend inwards in the radial direction, the ring disk of the protective cover can also be located thereon.
In a further advantageous alternative or further development of the flat spiral spring housing arrangement according to the invention, the axial wall section of the protective cover covers the gap from the outside, for which purpose said axial wall section preferably extends in the axial direction beyond the gap height and is in particular of completely circumferential configuration.
In a further advantageous development of the flat spiral spring housing arrangement according to the invention, the axial wall section of the protective cover bears in the radial direction externally against the flat spiral spring housing, preferably against the first housing part, in particular in a completely circumferential manner, and is thus fixed in the radial direction relative to the flat spiral spring housing.
In a further advantageous development of the flat spiral spring housing arrangement according to the invention, the protective cover is connected to the flat spiral spring housing by a plurality of latching connections which are arranged, preferably uniformly distributed in the circumferential direction, for axial fixing relative to the flat spiral spring housing. For this purpose, the protective cover preferably has a plurality of latching elements, preferably elastically resilient latching hooks, in particular distributed circumferentially over its axial wall sections, in particular uniformly distributed. The flat spiral spring housing preferably has a plurality of correspondingly configured latching projections, which are particularly preferably arranged on the cylindrical shell-shaped wall section of the first housing part. In this case, the latching hooks of the protective cover preferably engage behind or below the latching projections on the flat spiral spring housing and thus form a corresponding latching connection, with the result that the protective cover is fixed in the axial direction on the flat spiral spring housing and is connected to the latter.
The vehicle according to the invention, in particular the two-rail vehicle, has a flat spiral spring housing arrangement with a flat spiral spring housing and a protective cover, which has a flat spiral spring housing arrangement according to the invention and a protective cover according to the invention.
The first housing part of the protective cover according to the invention is preferably designed as a stator and is fastened in a stationary manner to the vehicle, in particular to a longitudinal rod housing or the like. The second housing part of the flat spiral spring housing is preferably configured as a rotor and is fastened to the steering column and/or the steering wheel.
The protective cover according to the invention, which is connected to the flat spiral spring housing to form the flat spiral spring housing arrangement, is preferably at least partially surrounded by the trim panel in such a way that the protective cover is additionally secured in the radial direction by the trim panel, in particular in the region of its axial wall section. In other words, in the case of a vehicle according to the invention, the protective cover preferably bears with its axial wall section, in particular with its inside, against the cylindrical shell-shaped wall section of the cup-shaped first housing part and secondly, in particular with its outside of the axial wall section, at least partially against the decorative plate. In this way, an additional radial fixing or holding of the protective cover on the vehicle in the radial direction can be achieved in a very simple manner.
The advantageous improvements proposed with respect to the protective cover and its advantages are also correspondingly applicable to the flat spiral spring housing arrangement according to the invention and to the motor vehicle according to the invention.
Further features of the invention emerge from the claims, the figures and the description of the figures. All features and combinations of features mentioned in the above text in the description as well as features and combinations of features mentioned in the description of the figures and/or shown in the figures only can be used not only in the respectively specified combination but also in other combinations on their own.
Drawings
The invention will now be described in more detail using a preferred exemplary embodiment with reference to the accompanying drawings, in which:
FIG. 1 shows a cross section of an exemplary embodiment of a flat spiral spring housing arrangement arranged in a vehicle according to the present invention;
FIG. 2 shows in enlarged illustration a detail of the flat spiral spring housing arrangement of FIG. 1 in accordance with the present invention;
fig. 3A shows the protective cap of fig. 1 and 2 in a perspective view as a single component in a functional use state according to the invention; and
fig. 3B shows the protective cap of fig. 3A in an assembled state according to the invention.
Detailed Description
Fig. 1 shows an exemplary embodiment of a flat spiral spring housing arrangement according to the invention, which has a flat spiral spring housing 2 made of plastic and a protective cover 4 according to the invention, also made of plastic, in a functionally mounted state in a vehicle between a steering wheel 1 and a steering column module 15 surrounded by a decorative panel 5. For a better understanding, fig. 2 shows in an enlarged view a detail of the flat spiral spring housing arrangement of fig. 1 according to the invention.
The flat spiral spring housing 2 is composed of a cup-shaped first housing part 2A, which first housing part 2A has a base 6 of annular disk-shaped design and has a cylindrical shell-shaped wall part 7, and of a second housing part 2B, which second housing part 2B forms a housing cover. The flat coil spring 3 is disposed in a receiving space formed by the first housing portion 2A and the second housing portion 2B within the flat coil spring housing 2. The receiving space for the flat helical spring 3 is formed on the bottom side by the base 6 of the annular disk-shaped configuration of the first housing part 2A and by the cylindrical housing wall section 7 of the first housing part 2A and by the annular disk-shaped section 8 of the second housing part 2B forming a housing cover.
In the case of the exemplary embodiment of the flat spiral spring housing arrangement according to the invention, the first housing part 2A is of multi-part construction (see fig. 2) and is assembled in particular from a first housing part 2A' of cup-shaped construction and a second housing part 2A ″ also of cup-shaped construction, the second housing part 2A ″ of cup-shaped construction having an annular disk section 12, which annular disk section 12 extends inward in the radial direction and into the interior of the flat spiral spring housing 2 in the manner of a labyrinth seal between the annular disk section 8 of the second housing part 2B and the cylindrical shell-shaped wall section 7 of the first housing part 2A.
The first housing part 2A is configured as a stator and is fastened in a stationary or fixed manner to the vehicle body via a steering column module 15, while the second housing part 2B serves as a rotor and is firmly connected to a steering column (not shown here) for rotation therewith, which steering column can rotate about a rotation axis L together with a steering wheel 1, which steering wheel 1 is likewise fixedly fastened to the steering column for rotation therewith. That is, the first housing part 2A and the second housing part 2B rotate relative to each other with each steering movement.
In order to be able to rotate the second housing part 2B relative to the first housing part 2A in a manner as frictionless as possible, a gap S exists between the annular disk section 2B of the second housing part and the first housing part 2A, in particular between the annular disk section 2B of the second housing part and the annular disk section of the second cup-shaped housing part 2A ″, which gap S is covered according to the invention from the outside by the protective cover 4 according to the invention.
To this end, the protective cap 4 according to the invention has a radially inwardly extending annular disk 9 and an axial wall section 10, the protective cap 4 together with its annular disk 9 being located on the outside on the annular disk section 8 of the second housing part 2B in order to seal off the gap S in the case of the flat spiral spring housing arrangement according to the invention. Furthermore, in this case, the annular disk 9 of the protective cover 4 according to the invention is of completely circumferential design with respect to the functional use state (see fig. 3A), with the result that, in the case of the flat spiral spring housing arrangement according to the invention, the gap S is sealed over the entire circumference. As a result, foreign matter such as hair can be prevented from entering the flat coil spring housing 2 in a very effective manner.
Furthermore, the protective cover 4 is supported with its axial wall section 10 on the outside against the flat spiral spring housing 2, more precisely against the cylindrical shell-shaped wall section 7 of the first housing part 2A, in particular against the second cup-shaped housing part 2A ″ and the decorative plate 5. As a result, the protective cover 4 is sufficiently fixed in the radial direction with respect to the flat coil spring housing 2 to reliably cover the gap 2.
In order to fix the protective cover 4 axially on the flat spiral spring housing 2, the protective cover 4 has a plurality of locking elements in the form of latching hooks 11 which are distributed uniformly in the circumferential direction (see also fig. 3A and 3B), the latching hooks 11 engaging in each case behind projections on the cylindrical wall section 7 of the first housing part 2A, in which case the projections are formed in each case by the lower edge of the second cup-shaped housing part 2A "(see in particular fig. 2).
In order to reduce the friction between the protective cover 4 and the second housing part 2B co-rotating with the steering wheel 1 and the steering wheel 1, the surface of the protective cover 4 has a low roughness, in particular a low coefficient of friction, on the lower side of the annular disc 9, that is to say on the side facing the second housing part 2B, and on the upper side, that is to say on the side facing the steering wheel 1. Furthermore, the annular disk 9 has an antistatic design in this region, and in order to prevent electrostatic charging it may be advantageous in certain cases for the entire protective cover 4 to be of antistatic design.
The exemplary embodiment of the protective cover 4 according to the invention is formed by two half ring sections 4A and 4B (see fig. 3A and 3B), which two half ring sections 4A and 4B are connected by an integral hinge 13 at two first adjacent ring section ends and can be connected to each other by a releasable latching connection 14 or in a functional use state at the other two adjacent ring section ends.
For this purpose, the protective cover 4 has a latching projection 14A at one of the second ring section ends and a latching hook 14B at the other second ring section end. The locking elements of the latching connection 14, that is to say the latching projections 14A and the latching hooks 14B, are advantageously arranged in the region of the axial wall section 10.
The integral hinge 13, which is connected by its two adjacent first ring section ends, extends in the axial direction along the axial wall section 10, with the result that the ring section ends are connected only in the region of the axial wall section 10, but not in the region of the annular disk 9.
Since the protective cover 4 is formed by two half- ring sections 4A and 4B which are connected to one another on one side by an integral hinge 13 and can be releasably connected on the other side by a latching connection 14, the retaining cover 4 can be mounted in the radial direction, that is to say can be arranged around the flat spiral spring housing 2 from the outside in the state in which it has already been mounted in the vehicle, without the steering wheel 1 having to be removed. This makes a particularly simple retrofitting of the protective cover 4 according to the invention possible and/or a particularly simple subsequent fastening to the flat spiral spring housing 2.
It goes without saying that various structural modifications are possible with respect to the described exemplary embodiments without departing from the scope of the patent claims.
Claims (26)
1. A protective cover (4) for sealing a flat spiral spring housing (2) having a first housing part (2A) and at least one second housing part (2B) forming a housing cover, the first housing part (2A) and the second housing part (2B) forming a receiving space for a flat spiral spring (3), the two housing parts (2A, 2B) being rotatable relative to one another, and the flat spiral spring housing (2) having a gap (S) between the first housing part (2A) and the second housing part (2B),
wherein the protective cover (4) has an annular disk (9) which extends in the radial direction over at least a part of the circumference; and a wall section (10) which adjoins the outer edge of the annular disk (9) and extends at least over a part of the circumference in the axial direction, the protective cover (4) being connectable to the flat spiral spring housing (2) in such a way that, in its functional state of connection to the flat spiral spring housing (2) to form a flat spiral spring housing arrangement, the protective cover (4) covers the gap (S) between the first housing part (2A) and the second housing part (2B) of the flat spiral spring housing (2) from the outside,
wherein the protective cover (4) is configured in such a way that, in the state in which it is connected to the flat spiral spring housing (2) to form a flat spiral spring housing arrangement, an axial wall section (10) of the protective cover (4) bears in the radial direction against the flat spiral spring housing (2) and is thus fixed in the radial direction relative to the flat spiral spring housing (2),
wherein the protective cover (4) bears externally against the flat spiral spring housing (2) in the region of a cylindrical shell-shaped wall section (7) of the first housing part (2A), and
wherein the protective cover (4) is formed by at least two ring segments (4A, 4B).
2. Protective cover (4) according to claim 1, characterized in that the protective cover (4) can be connected to the flat spiral spring housing (2) in such a way that, in the state in which it is connected to the flat spiral spring housing (2) to form a flat spiral spring housing arrangement, the annular disc (9) of the protective cover (4) covers the gap (S) from the outside, for which purpose the annular disc (9) of the protective cover (4) extends in the radial direction beyond the gap width.
3. Protective cover (4) according to claim 1 or 2, characterized in that the axial wall section (10) of the protective cover (4) can be connected to the flat spiral spring housing (2) in such a way that, in the state in which it is connected to the flat spiral spring housing (2) to form a flat spiral spring housing arrangement, the axial wall section (10) of the protective cover (4) covers the gap (S) from the outside, for which purpose the axial wall section (10) of the protective cover (4) extends in the axial direction beyond the gap height.
4. Protective cover (4) according to claim 1 or 2, characterized in that, for axial fixation relative to the flat spiral spring housing (2), the protective cover (4) has a plurality of latching elements (11) distributed in the circumferential direction on its axial wall section (10) in order to establish a latching connection to the first housing part (2A) of the flat spiral spring housing (2).
5. Protective cover (4) according to claim 1 or 2, wherein two first adjacent ring section ends are connected to each other by a hinge (13).
6. Protective cover (4) according to claim 5, wherein two other adjacent ring section ends can be connected to each other.
7. Protective cover (4) according to claim 6, wherein two other adjacent ring section ends are connected to each other by a latch connection (14).
8. Protective cover (4) according to claim 1 or 2, characterized in that the annular disc (9) of the protective cover (4) has a surface of low roughness on the side facing the housing part (2B) configured as a rotor in the functional mounted state in the vehicle.
9. Protective cover (4) according to claim 1 or 2, characterized in that at least the side of the annular disc of the protective cover (4) facing the housing part (2B) configured as a rotor in the functional mounted state of the vehicle has an antistatic surface.
10. Protective cover (4) according to claim 1, wherein the axial wall section of the protective cover bears in a completely circumferential manner in the radial direction against the flat spiral spring housing.
11. Protective cover (4) according to claim 2, wherein the annular disc of the protective cover has a completely circumferential configuration.
12. The protective cover (4) according to claim 3, wherein the axial wall section of the protective cover has a fully circumferential configuration.
13. Protective cover (4) according to claim 4, wherein the latching elements are resiliently resilient latching hooks.
14. Protective cover (4) according to claim 5, wherein only the axial wall sections (10) of the ring section ends are connected by hinges (13).
15. Protective cover (4) according to claim 9, wherein the entire protective cover is of antistatic construction.
16. A flat spiral spring housing arrangement with a flat spiral spring housing (2) and a protective cover (4), the flat spiral spring housing (2) having a first housing part (2A) and at least a second housing part (2B) forming a housing cover, the first housing part (2A) and the second housing part (2B) forming a receiving space for a flat spiral spring (3), the two housing parts (2A, 2B) being rotatable relative to one another, and the flat spiral spring housing (2) having a gap (S) between the first housing part (2A) and the second housing part (2B),
characterized in that the protective cover (4) is constructed according to any one of claims 1 to 15 and covers the gap (S) from the outside.
17. The flat spiral spring housing arrangement according to claim 16, characterized in that the flat spiral spring housing (2) has a cup-shaped first housing part (2A) with a ring-disk-shaped bottom (6) and with a cylindrical shell-shaped wall section (7), and at least a second housing part (2B) with at least one ring-disk-shaped section (12), the ring-disk-shaped section (12) of the second housing part (2B) extending in a radial direction and being arranged spaced apart in an axial direction from the ring-disk-shaped bottom (6) of the first housing part (2A) and forming a receiving space for the flat spiral spring (3) with the first housing part (2A), and the gap (S) being located between the first housing part (2A) and the second housing part (2B).
18. The flat spiral spring housing arrangement according to claim 16 or 17, characterized in that the annular disk (9) of the protective cover (4) covers the gap (S) in the flat spiral spring housing (2) from the outside, for which purpose the annular disk (9) of the protective cover (4) extends in the radial direction over a gap width.
19. The flat spiral spring housing arrangement according to claim 16 or 17, characterized in that the axial wall section (10) of the protective cover (4) covers the gap (S) from the outside, for which purpose the axial wall section (10) of the protective cover (4) extends in the axial direction over a gap height.
20. The flat spiral spring housing arrangement according to claim 16 or 17, characterized in that an axial wall section (10) of the protective cover (4) bears externally in the radial direction against the first housing part (2A) of the flat spiral spring housing (2), as a result of which it is fixed in the radial direction relative to the flat spiral spring housing (2).
21. The flat spiral spring housing arrangement according to claim 16 or 17, characterized in that the protective cover (4) is connected to the flat spiral spring housing (2) by means of a plurality of latching connections arranged in a uniformly distributed manner in the circumferential direction for axial fixing relative to the flat spiral spring housing (2), the protective cover (4) having a plurality of latching elements (11) on its circumferential wall section (10) in a uniformly distributed manner in the circumferential direction, and the flat spiral spring housing (2) having a correspondingly configured plurality of latching projections arranged on the cylindrical shell-shaped wall section (7) of the first housing part (2A).
22. The flat spiral spring housing arrangement of claim 18, wherein the annular disc of the protective cover has a fully circumferential configuration.
23. The flat spiral spring housing arrangement of claim 19, wherein the axial wall segments of the protective cover have a fully circumferential configuration.
24. Flat spiral spring housing arrangement according to claim 20, wherein the axial wall sections (10) of the protective cover (4) bear against the first housing part in a completely circumferential manner.
25. The flat spiral spring housing arrangement of claim 21, wherein the latch element is an elastically resilient latch hook.
26. A vehicle has a flat spiral spring housing arrangement with a flat spiral spring housing (2) and a protective cover (4),
flat spiral spring housing means, which are constructed according to one of claims 16 to 25 and have a protective cover (4) according to one of claims 1 to 15.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015118543.1 | 2015-10-29 | ||
| DE102015118543.1A DE102015118543A1 (en) | 2015-10-29 | 2015-10-29 | Protective cover for a coil spring housing, clock spring housing assembly and vehicle having such a clock spring housing assembly |
| PCT/EP2016/074177 WO2017071939A1 (en) | 2015-10-29 | 2016-10-10 | Protective cover for a coil spring housing, coil spring housing arrangement, and vehicle having such a coil spring housing arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108136982A CN108136982A (en) | 2018-06-08 |
| CN108136982B true CN108136982B (en) | 2021-06-22 |
Family
ID=57133166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680061154.9A Active CN108136982B (en) | 2015-10-29 | 2016-10-10 | Protective cover for a helical spring housing, helical spring housing arrangement and vehicle |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10926817B2 (en) |
| EP (1) | EP3368380B1 (en) |
| JP (1) | JP2019501479A (en) |
| KR (1) | KR102038239B1 (en) |
| CN (1) | CN108136982B (en) |
| DE (1) | DE102015118543A1 (en) |
| WO (1) | WO2017071939A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113423614A (en) * | 2018-12-18 | 2021-09-21 | 西姆泰克公司 | Clock spring steering wheel power assembly |
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| US4475779A (en) | 1981-03-19 | 1984-10-09 | Repa Feinstanzwerk Gmbh | Rotary electrical connection |
| DE3111922C1 (en) * | 1981-03-26 | 1982-11-11 | Daimler-Benz Ag, 7000 Stuttgart | Power line connector for rotatable components |
| DE4027952C3 (en) | 1990-09-04 | 1998-02-12 | Eaton Controls Gmbh | Electrical connection device |
| JP2531358Y2 (en) * | 1990-09-20 | 1997-04-02 | アルプス電気株式会社 | Cable reel |
| JP2826006B2 (en) | 1991-12-13 | 1998-11-18 | アルプス電気株式会社 | Cable reel |
| FR2710597B1 (en) | 1993-10-01 | 1995-11-24 | Valeo Electronique | Rotating switch for motor vehicle. |
| DE4333807A1 (en) | 1993-10-04 | 1995-04-06 | Gore W L & Ass Gmbh | Spiral cable socket |
| US5429517A (en) * | 1994-02-14 | 1995-07-04 | Methode Electronics, Inc. | Two-piece clockspring with lock and wire harness assembly |
| US5630723A (en) * | 1994-11-30 | 1997-05-20 | Nihon Plast Co., Ltd. | Cable type electric connector |
| JP2000048924A (en) * | 1998-07-24 | 2000-02-18 | Furukawa Electric Co Ltd:The | Rotary connector |
| CA2272008A1 (en) * | 1999-05-11 | 2000-11-11 | Francois Trepanier | Device and method for recording an interference pattern in a photosensitive medium |
| DE19960205A1 (en) * | 1999-12-14 | 2001-06-28 | Alcatel Sa | Device for signal transmission between two end points |
| JP2001341945A (en) | 2000-05-30 | 2001-12-11 | Sumitomo Wiring Syst Ltd | Cable reel |
| DE10125403A1 (en) | 2001-05-25 | 2002-12-12 | Valeo Schalter & Sensoren Gmbh | transmission unit |
| JP2003059610A (en) * | 2001-08-22 | 2003-02-28 | Sumitomo Wiring Syst Ltd | Cable reel |
| JP2004120900A (en) * | 2002-09-26 | 2004-04-15 | Tokai Rika Co Ltd | Connection structure of steering connector and steering wheel |
| US7232312B2 (en) | 2003-04-16 | 2007-06-19 | The Furukawa Electric Co., Ltd. | Rotary connector having an integral fuse |
| US7104821B2 (en) * | 2004-09-16 | 2006-09-12 | Alps Electric Co., Ltd. | Rotary connector |
| JP4787629B2 (en) * | 2006-02-23 | 2011-10-05 | 株式会社オートネットワーク技術研究所 | Insert parts and manufacturing method thereof |
| JP6100015B2 (en) * | 2012-02-16 | 2017-03-22 | 矢崎総業株式会社 | Flat cable winding device and assembly method thereof |
| JP5896409B2 (en) * | 2012-02-16 | 2016-03-30 | 矢崎総業株式会社 | Flat cable winding device |
| KR200473363Y1 (en) | 2012-10-25 | 2014-06-27 | 주식회사 유라코퍼레이션 | Grommet |
-
2015
- 2015-10-29 DE DE102015118543.1A patent/DE102015118543A1/en not_active Withdrawn
-
2016
- 2016-10-10 JP JP2018521956A patent/JP2019501479A/en active Pending
- 2016-10-10 EP EP16781363.3A patent/EP3368380B1/en active Active
- 2016-10-10 CN CN201680061154.9A patent/CN108136982B/en active Active
- 2016-10-10 KR KR1020187011927A patent/KR102038239B1/en active IP Right Grant
- 2016-10-10 US US15/769,208 patent/US10926817B2/en active Active
- 2016-10-10 WO PCT/EP2016/074177 patent/WO2017071939A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015118543A1 (en) | 2017-05-04 |
| US20180304943A1 (en) | 2018-10-25 |
| KR102038239B1 (en) | 2019-10-29 |
| WO2017071939A1 (en) | 2017-05-04 |
| KR20180059880A (en) | 2018-06-05 |
| CN108136982A (en) | 2018-06-08 |
| EP3368380B1 (en) | 2019-07-17 |
| EP3368380A1 (en) | 2018-09-05 |
| US10926817B2 (en) | 2021-02-23 |
| JP2019501479A (en) | 2019-01-17 |
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